NH 2 − and NH 4 + are conjugate acid-base pair or not has to be given. Concept Introduction: Conjugate acid-base are simply a pair of molecules or ions that are related to each other by loss or gain of a single proton. Difference between conjugate acid-base pair is H + ion. For a Brønsted-Lowry acid, the conjugate base has fewer H + and for Brønsted-Lowry base, the conjugate acid has more H + .
NH 2 − and NH 4 + are conjugate acid-base pair or not has to be given. Concept Introduction: Conjugate acid-base are simply a pair of molecules or ions that are related to each other by loss or gain of a single proton. Difference between conjugate acid-base pair is H + ion. For a Brønsted-Lowry acid, the conjugate base has fewer H + and for Brønsted-Lowry base, the conjugate acid has more H + .
Solution Summary: The author explains that conjugate acid-bases are simply a pair of molecules or ions that are related to each other by loss or gain.
NH2− and NH4+ are conjugate acid-base pair or not has to be given.
Concept Introduction:
Conjugate acid-base are simply a pair of molecules or ions that are related to each other by loss or gain of a single proton. Difference between conjugate acid-base pair is H+ ion. For a Brønsted-Lowry acid, the conjugate base has fewer H+ and for Brønsted-Lowry base, the conjugate acid has more H+.
(b)
Interpretation Introduction
Interpretation:
NH3 and NH2− are conjugate acid-base pair or not has to be given.
Concept Introduction:
Refer part (a).
(c)
Interpretation Introduction
Interpretation:
H3O+ and H2O are conjugate acid-base pair or not has to be given.
Concept Introduction:
Refer part (a).
(d)
Interpretation Introduction
Interpretation:
OH− and O2− are conjugate acid-base pair or not has to be given.
Concept Introduction:
Refer part (a).
(e)
Interpretation Introduction
Interpretation:
H3O+ and OH− are conjugate acid-base pair or not has to be given.
CHEMICAL KINETICS. Indicate the approximation methods for solving the rate equation.
TRANSMITTANCE
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Please identify the one structure below that is consistent with the 'H NMR and IR spectra
shown and draw its complete structure in the box below with the protons alphabetically labeled as
shown in the NMR spectrum and label the IR bands, including sp³C-H and sp2C-H stretch, indicated by
the arrows.
D
4000
OH
LOH
H₂C
CH3
OH
H₂C
OCH3
CH3
OH
3000
2000
1500
HAVENUMBERI-11
1000
LOCH3
Draw your structure below and label its equivalent protons according to the peak labeling that is used
in the NMR spectrum in order to assign the peaks.
Integrals indicate number of equivalent protons. Splitting patterns are: s=singlet, d=doublet, m-multiplet
8
3Hb s
m
1Hd s
3Hf
m 2Hcd
2Had
1He
鄙视
m
7
7
6
5
4
3
22
500
T
1
0
Relative Transmittance
0.995
0.99
0.985
0.98
Please draw the structure that is consistent with all the spectral data below in the box and
alphabetically label the equivalent protons in the structure (Ha, Hb, Hc ....) in order to assign all the
proton NMR peaks. Label the absorption bands in the IR spectrum indicated by the arrows.
INFRARED SPECTRUM
1
0.975
3000
2000
Wavenumber (cm-1)
1000
Structure with assigned H peaks
1
3
180 160 140 120
100
f1 (ppm)
80 60
40
20
0
C-13 NMR
note that there are 4
peaks between 120-140ppm
Integral values equal
the number of
equivalent protons
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
fl (ppm)
Chapter 14 Solutions
OWLv2 for Moore/Stanitski's Chemistry: The Molecular Science, 5th Edition, [Instant Access], 1 term (6 months)
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